diff --git a/Chapter06/TodoListService/packages.config b/Chapter06/TodoListService/packages.config
index 586d10c..ee3edff 100644
--- a/Chapter06/TodoListService/packages.config
+++ b/Chapter06/TodoListService/packages.config
@@ -20,7 +20,7 @@
   <package id="Microsoft.Owin.Security.OAuth" version="3.0.0" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
   <package id="Modernizr" version="2.8.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.5" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="Respond" version="1.4.2" targetFramework="net45" />
   <package id="System.IdentityModel.Tokens.Jwt" version="4.0.0" targetFramework="net45" />